What I´ve done to try and solve the problem is:
After cleaning out the registry, reinstall with the newest build, 3017
Loaded the latest graphics card drivers
Clean out TEMP files and Defrag the system
Have the display at 16 bit resolution and 1024x768 resolution
Stopped my Antivirus update and my Firewall
Increase my Virtual memory to 3GB
I'm using Vista Home Premium.
I´ve run out of ideas. Any suggestions would be appreciated.